Improvement in printing-presses



w. P. Kaunas; Printing Press.

Patented March 2,1875.

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UNITED STATES PATENT OFFICE.

WELLINGTON I. KIDDER, OF MALDEN, MASSACHUSETTS.

IMPROVEMENT IN PRINTING-PRESSES.

Specification forming part of Letters Patent No. 160,333, dated March 2,1875; application filec' December 9, 1874. A

To all whom it may concern:

Be it known that I, WELLINGTON P. KID- DER, of Malden, of the county ofMiddlesex and State of Massachusetts, have invented a new and usefulImprovement in Printing- Presses; and do hereby declare the same to befully described in the following specification and represented in theaccompanying drawings, of which- Figure l is a top view, Figs. 2 and 3opposite side elevations, and Fig. 4 a vertical section, of a card,circular, or letter printingpress with my improvement. Fig. 5 is avertical section, showing the fender near the limit of its downwardmotion, and the clamp L lifted from the platen.

In presses of this natu e, when the bed car rying the form of type ismovable to and away from the platen supporting the paper to be printed,there is great danger of an attendant, who puts on and takes off thepaper, getting his fingers caught and injured or crushed between the bedand platen.

To prevent this is the main purpoae of my invention, in the carrying outof which I combine with the press a mechanism which will effectuallyremove all danger of such an accident, and, besides, it serves to bothclose down and elevate the clamp or clamps for holding the paper to theplaten.

" In the drawings, A represents the platen,

supported in an inclined position by a frame, B. The bed (exhibited atO) is pivoted to the frame B by means of arms a a, projecting down fromthe bed, as shown, the bed being moved toward and away from the platenby a connecting-rod, D, and a crank-wheel, E, the latter being fixed ona shaft, F. On its inner side the crank-wheel E has a cam-groove, b,made in it to receive a stud projecting from one of two arms, G G, thatextend in manner as shown from a rocker-shaft, H. The said arms, attheir free ends, are, by connectionrods I I, joined to a fender, K,which consists of two slide-blocks, 0 0, and a bar, 61, connecting them,all being arranged with the platen in manner as represented. The blocksslide freely on the opposite edges of the platen, and the bar 01 extendsover or across the paperclamp L, which, at its lower part, is hinged tothe platen, and has a small stud, 0, extended from it, (the said clamp,)against which the bar d strikes in descending, in order to throw up theclamp. There may be to the platen two of said clamps, each having such astud.

While the bed may be advancing to the platenthe fender will be moved upbetween the two, and in case a hand or the hands of an attendant may beupon the platen the said fender will be moved in contact with the handor hands and force such upward off the platen, thereby preventing thehand or hands from being caught and crushed between the bed and platen.

I claim 1. The combination of the sliding or reciprocating fender K,provided with mechanism for actuating it, as described, with the printing-press or bed 0 and platen A, arranged and to operate as set forth.

2. The combination of the fender K, provided with mechanism foractuating it, as described, with the platen A and bed 0 and one or moresheet holders or clamps, L, as specified, arranged and connected withthe bed as set forth.

WVELLINGTON P. KIDDER.

Witnesses:

It. H. EDDY, J. R. Snow.

